Mechanical horn.



J. R. MARSICO.

MEfJHANlCAL HORN. I

APPLICATION HLED OCT. 2. 19m.

1,237,07. PatentedAug. 14,1917.

UNITED -TATEs PATENT OFFICE.

JERAItu R. MARSICO, OF BROOKLYN, NEW YORK.

MECHANICAL HORN.

Application filed 0ctobe12, 1915.

ing a means for positively driving the same in 'the presence of and against the diav phragm and then in turn permitting the vibrating means to operate under inertia against the diaphragm.

Another object of the invention resides in the-provision of a sounding device including a flexible. diaphragm and revolving vibratingmeans including a structure which will serve to properly balance the vibrating means and thereby increase the general efficiency of the same while in operation.

In the drawings Figure 1 is a plan view of the sounding device.

. Fig. 2 is a vertical section therethrough. Fig. 3 is a transverse section therethrough. Fi 4: is a conventional illustration of the clutc In carrying the invention into practice, use is made of a casing 1 having a. flange 2 to which a flexible diaphragm 3 is secured and arranged with portions respectively intcrposed between yieldable washers 4 and 5 which operate to take up objectionable metallic vibrations at the point of connection of the diaphragm with the casing 1. Located in advance of the diaphragm is a horn carrying crown or disk 6 having a central collar 7 to which the restricted end of a flared born 8 is suitably secured. The crown is secured to the flange 2 by suitable fastening screws or the equivalent thereof as shown at 9.

At diametrically opposite points upon the casing 1 are relatively adjustable bearings 10 and 11, the latter being provided with a screw 12 which may be moved in the direction of the opposite bearing 10 as the occasion may demand. Any requisite adjustment of the screw may be retained by Specification of Letters Patent.

Patented Aug. 14, 1917;

Serial No. 53,795.

providing the latter with a jam nut 13 which may be securely brought into purchase with the external walls of the casing 1, as shown in Fig. 3.

The vibrator consists of an oscillating shaft 14 having its ends respectively mount.

ed. in the bearing 10 and screw 12, and a striker in the form of a wheel 15 rotatably mounted on the shaft and comiectedtherewith by a clutch. As illustrated, the wheel is provided in one face around its shaft opening with a series of recesses having clutch surfaces 16 whose rear ends form pockets 18 for the free reception of the rolling clutch elementsi'or balls 17 and whose forward ends in the direction of rotation ap-. proach the shaft so that the balls will be" bound against it'as seen in Fig. 4. The recesses for the, balls arecut into the face of the wheel and are closedlat their inner sides by a wall 19 in the wheel itself whereas they,

are closed at their outer sides y a collar 20 carried by the shaft. As also illustrated herewith, the shaft carries a larger collar or disk 24 neirt outside of and rigid'with the collar 20. i

In order to reduce friction as far as possible, the wheel is also provided-around its shaft-opening with a recess in its opposite face producing a ball-racefiet for a series of anti-friction bodies such as .balls' 22 which balanced and it results that the wheel is free to revolve for tion of time. w

The disk 21 which is fixed to the shaft 14., is provided at one side with a horizontal crankpin 25 which ;is extended through an elongated slot 26 in a lateral h1g2? on the actuator. The latter is in the form of a plunger 28 freely movable through alined bearings 29 and 30 which are secured to the walls of the casing 1. At the outer end the plunger is provided with a knob 30 which may be operated by the hand of the user so as to cause its movement in one direction; whereas the plunger is moved automatically in an opposite direction under the action of spring 31 which is mounted upon a suitable support 32 in the casing 1 and provided a relatively long dura- .85 travel therein in contact with'another ball-'" gentially disposed with relation to the shaft 1 as a consequence bodies 17 will the device 28, the

its normal position, shown in Figs. 2 and 3 copies of this patent mny be obtained for with a terminal 33 underlying the pin 25 and freely bearing thereagainst. lhe opposite terminal 31 of the spring bears against the adjacent wall of the casing 1.

The flexible diaphragm 3 is provided with an adjustable stud 35 which is centrally disposed upon the diaphragm and alined radially with' the shaft 14:. It may be moved with relation to the toothed knocking surface 36 of the vibrating wheel 15 in order that such vibrations of the diaphragm may be set up as will suit the re uirements of the operator and also bring a out an operative correlated position of the diaphragm and the wheel 15, as will be understood.

Coiled about the shaft 14: is a spring 37 having one terminal extended through and secured in a passage 38 in the shaft and its opposite terminal, secured at 39 to the bearing 10. the shaft may for a purpose to be hereinafter explained.

In operation the plunger 28 which is tan- 14, is depressed against the action of the sprin 31 and in so doing the pin 25 moves the disk 21 and motion is imparted to the shaft 14:. By tapping the knob 30" suddenly best results are obtained as sudden motion will, of course, be imparted to the shaft and I thereof, the friction clutch be made to travel forward andeffectually brought into clutch contact with the shaft 14:- On operating the device 28 in the mentioned manner, temporary forward rotation will be set up in the wheel 15, and on releasing pressure of the hand from latter will be returned to and the sprin 37 will reset the shaft 14. The clutch bodies 17 will thus return to the pockets 18 to revolve by inertia for quite a duration of time. The construction permits of a means which will operate to permit respectively positive and non-positive rotary movementsto be imparted to the wheel 15, and the latters office as a vibrating means phragm will Under the influence of this spring be revolved in one direction direction of rotation, clutch the inner wallof the recesses and said collar,

and the wheel 15 will continue for the-dia-' be materially added to and the diaphragm c. vibrated for a relatively long period t .me with but comparatively little exertion on the part of the operator.

The spring 37, operates to hold the shaft 11, normally under tension. It causes the shaft to quickly return to its normal stationary condition after motion is imparted to the controlling device 28, for the purpose of setting up active movements in the vibrating wheel 15.

While I haveshown and described one principal embodiment of my invention by way of illustration, I wish it to be understood that I do not confine myself to all the precise details of construction herein ,set forth, as modifications, variations and alterations may be made therein without departing from the spirit of the invention or exceeding the scope of the appended claim.

What is claimed as new is:

In a signal of the class described including a casing having a diaphragm provided with a stud, the com ination with a shaft mounted for oscillation' withinthe casing, yielding means normally turning it in one direction, a collar and an adjacent disk fast on the shaft, a crank pin onI-the disk, an upright plunger movably mounted in the casing and having a" cross slot engaging said pin,- and a spring holding the'plunger normally raised; of a striker wheel having knocking surfaces on its periphery coacting with said stud, the wheel having an axial opening surrounding said shaft and being recessed in its face next said collar to produce a series of clutch surfaces converging toward the shaft in the balls between said wheel also having a recess in its opposite face producing a ball race around its shaft-opening, a series of balls in thisrace, and a cone on the shaft contacting with said balls. Y 1

In testimony whereof I affix my signature in presence of two witnesses. y JERARD .R. MARSICO.

Witnesses: Y 4

' STANLEY-TOMMASELLE,

GEO.-F. BYRNE.

each, by addressing the "Commissioner of Patents,

Washington, D. 0. 

